Facebook messenger chat extension

I follow the documentation of facebook developers, I try to configure a chat extension. According to the documentation: I already added my url to the white list, change the status of messenger_extensions to true, etc ... but clicking on the button sends me to the website but outside of messenger, I want something like this:

I would appreciate if you have any example of how to do it ... I've been stuck in this for a long time :(

I am using BotmanStudio

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